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Bonstead Attends 1971 Green Colonial School in Des Moines
Avery J Bonstead of Bonstead Plumbing and Heating Graettinger attended Green Colonial Inc 1971 New Product and Service School in Des Moines. The program covered air conditioning and warm air heating with laboratory work on the job training lectures and special sessions on roof top heating evaporative coolers electric furnaces and venting.
MENTIONED IN THIS ARTICLE
Avery J. Bonstead
Bonstead Plumbing and Heating
Graettinger
Des Moines
Green Colonial Inc
New Product